Kill 4 enemies in a row with headshots in the single player campaign.

Beat IW best time on the Ship Training course in 'F.N.G.' (15.1 sec).

Campaign: Killed 7 enemies with a single C4 blast.

Campaign: Maxed out your XP and levels.

Collect 10 Hans Volter Dolls in Castle Volter

Collect 10 Holographic Projectors in Rig

Find all collectibles on Netherhold

Destroy 10 Demon Skulls on Hellmark Station

Destroy 10 gold trophies on Biolapse

Destroy 10 Red Skulls on Ashwood Asylum

Destroy 10 Dosh Necklaces in Spillway

Destroy 10 Snow Globes in Santa's Workshop

Collect all the items on "The Tragic Kingdom"